ba7e17e073 rpc, test: document {previous,next}blockhash as optional (Sebastian Falbesoner)
Pull request description:
This PR updates the result help of the following RPCs w.r.t. the `previousblockhash` and `nextblockhash` fields:
- getblockheader
- getblock
Also adds trivial tests on genesis block (should not contain "previousblockhash") and best block (should not contain "nextblockhash").
Top commit has no ACKs.
Tree-SHA512: ef42c5c773fc436e1b4a67be14e2532e800e1e30e45e54a57431c6abb714d2c069c70d40ea4012d549293b823a1973b3f569484b3273679683b28ed40abf46bb
This option replaces --with-boost-process
This prepares external signer support to be disabled by default.
It adds a configure option to enable this feature and to check
if Boost::Process is present.
This also exposes ENABLE_EXTERNAL_SIGNER to the test suite via test/config.ini
fa24247d0f test: Fix NODE_NETWORK_LIMITED_MIN_BLOCKS disconnection (MarcoFalke)
fab6995629 test: Make test actually test something (MarcoFalke)
fae8f35df8 test: pep8 touched test (MarcoFalke)
Pull request description:
Fix several bugs. Also, fix#21227
ACKs for top commit:
jonasschnelli:
utACK fa24247d0f - thanks for fixing.
ryanofsky:
Code review ACK fa24247d0f with caveat above that I don't really understand the problem or fix. But the cleanups look good and the fix does seem perfectly safe. More description would be welcome!
Tree-SHA512: 67f6ec92f6493aa822ae3fa8a7426a5acdc684044b8bafc0c65b652f63ccce969d0a6f1d1f099d6a91d05f478724869345b70335f2cfcfd00df46aef05cc4f9e
6bfbc97d71 test: disallow sendtoaddress/sendmany when private keys disabled (Jon Atack)
0997019e76 Disallow sendtoaddress and sendmany when private keys disabled (Andrew Chow)
Pull request description:
Since `sendtoaddress` and `sendmany` (which use the `SendMoney` function) create and commit a transaction, they should not do anything when the wallet does not have private keys. Otherwise a valid transaction cannot be made.
Fixes#21104
ACKs for top commit:
jonatack:
ACK 6bfbc97d71
meshcollider:
utACK 6bfbc97d71
kristapsk:
ACK 6bfbc97d71. "Error: Private keys are disabled for this wallet" is definitely a better error message than "Insufficient funds" here. Hopefully change of error code from -6 to -4 doesn't break any software using Bitcoin JSON-RPC API.
Tree-SHA512: f277d6b5252e43942d568614032596f2c0827f00cd0cb71e44ffcb9822bfb15a71730a3e3688f31e59ba4eb7d275250c4e65ad4b6b3e96be6314c56a672432fb
b4511e2e2e log: Prefix log messages with function name if -logsourcelocations is set (practicalswift)
Pull request description:
Prefix log messages with function name if `-logfunctionnames` is set.
Yes, exactly like `-logthreadnames` but for function names instead of thread names :)
This is a small developer ergonomics improvement: I've found this to be a cheap/simple way to correlate log output and originating function.
For me it beats the ordinary cycle of 1.) try to figure out a regexp matching the static part of the dynamic log message, 2.) `git grep -E 'Using .* MiB out of .* requested for signature cache'`, 3.) `mcedit filename.cpp` (`openemacs filename.cpp` works too!) and 4.) search for log message and scroll up to find the function name :)
Without any logging parameters:
```
$ src/bitcoind -regtest
2020-08-25T03:29:04Z Using RdRand as an additional entropy source
2020-08-25T03:29:04Z Using 16 MiB out of 32/2 requested for signature cache, able to store 524288 elements
2020-08-25T03:29:04Z Using 16 MiB out of 32/2 requested for script execution cache, able to store 524288 elements
2020-08-25T03:29:04Z Loaded best chain: hashBestChain=0fff88f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e22ff height=0 date=2011-02-02T23:16:42Z progress=1.000000
2020-08-25T03:29:04Z block tree size = 1
2020-08-25T03:29:04Z nBestHeight = 0
2020-08-25T03:29:04Z Imported mempool transactions from disk: 0 succeeded, 0 failed, 0 expired, 0 already there, 0 waiting for initial broadcast
2020-08-25T03:29:04Z 0 addresses found from DNS seeds
```
With `-logthreadnames` and `-logfunctionnames`:
```
$ src/bitcoind -regtest -logthreadnames -logfunctionnames
2020-08-25T03:29:04Z [init] [ReportHardwareRand] Using RdRand as an additional entropy source
2020-08-25T03:29:04Z [init] [InitSignatureCache] Using 16 MiB out of 32/2 requested for signature cache, able to store 524288 elements
2020-08-25T03:29:04Z [init] [InitScriptExecutionCache] Using 16 MiB out of 32/2 requested for script execution cache, able to store 524288 elements
2020-08-25T03:29:04Z [init] [LoadChainTip] Loaded best chain: hashBestChain=0fff88f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e22ff height=0 date=2011-02-02T23:16:42Z progress=1.000000
2020-08-25T03:29:04Z [init] [AppInitMain] block tree size = 1
2020-08-25T03:29:04Z [init] [AppInitMain] nBestHeight = 0
2020-08-25T03:29:04Z [loadblk] [LoadMempool] Imported mempool transactions from disk: 0 succeeded, 0 failed, 0 expired, 0 already there, 0 waiting for initial broadcast
2020-08-25T03:29:04Z [dnsseed] [ThreadDNSAddressSeed] 0 addresses found from DNS seeds
```
ACKs for top commit:
laanwj:
Code review ACK b4511e2e2e
MarcoFalke:
review ACK b4511e2e2e🌃
Tree-SHA512: d100f5364630c323f31d275259864c597f7725e462d5f4bdedcc7033ea616d7fc0d16ef1b2af557e692f4deea73c6773ccfc681589e7bf6ba970b9ec169040c7
9f21ed4037 [test] Check user agent string from test framework connections (John Newbery)
9ce4c3c4c1 [test] Add P2P_SERVICES to p2p.py (John Newbery)
010542614d [test] Move MY_RELAY to p2p.py (John Newbery)
9b4054cb7a [test] Move MY_SUBVERSION to p2p.py (John Newbery)
7e158a6910 [test] Move MY_VERSION to p2p.py (John Newbery)
652311165c [test] Move MIN_VERSION_SUPPORTED to p2p.py (John Newbery)
Pull request description:
The messages.py module should contain code and helpers for
[de]serializing p2p messages. Specific usage of those messages should
be in p2p.py. This PR moves test framework specific constants to p2p.py.
It also changes the SUBVERSION constant to be a string instead of a bytes object. That means that it needs to be explicitly converted to a bytes object to serialize into a version message. Failing to do so would cause an easy-to-spot bug. This should avoid silent failures like the one solved in #20522.
ACKs for top commit:
laanwj:
Code review ACK 9f21ed4037
Tree-SHA512: 41d46575ac0ec36ad074d6c6a5b9cef50b05eeb8ddd8ed0a8f0d0c4617cc7b8baa6580af5b83a668230ce1ac27bf0e56914d0361a48b1b05fd75e2e60350eeaf
de6b389d5d tests: Test getaddressinfo parent_desc (Andrew Chow)
e4ac869a0a rpc: Add parent descriptor to getaddressinfo output (Andrew Chow)
bbe4a36152 wallet: Add GetDescriptorString to DescriptorScriptPubKeyMan (Andrew Chow)
9be1437c49 descriptors: Add ToNormalizedString and tests (Andrew Chow)
Pull request description:
Adds `parent_desc` field to the `getaddressinfo` RPC to export a public descriptor. Using the given address, `getaddressinfo` will look up which `DescriptorScriptPubKeyMan` can be used to produce that address. It will then return the descriptor for that `DescriptorScriptPubKeyMan` in the `parent_desc` field. The descriptor will be in a normalized form where the xpub at the last hardened step is derived so that the descriptor can be imported to other wallets. Tests are added to check that the correct descriptor is being returned for the wallet's addresses and that these descriptors can be imported and used in other wallets.
As part of this PR, a `ToNormalizedString` function is added to the descriptor classes. This really only has an effect on `BIP32PubkeyProvider`s that have hardened derivation steps. Tests are added to check that normalized descriptors are returned.
ACKs for top commit:
Sjors:
utACK de6b389d5d
S3RK:
Tested ACK de6b389
jonatack:
Tested ACK de6b389d5d modulo a few minor comments
fjahr:
Code review ACK de6b389d5d
meshcollider:
Tested ACK de6b389d5d
Tree-SHA512: a633e4a39f2abbd95afd7488484cfa66fdd2651dac59fe59f2b80a0940a2a4a13acf889c534a6948903d701484a2ba1218e3081feafe0b9a720dccfa9e43ca2b
84716b134e Add "index/blockfilterindex -> validation -> index/blockfilterindex" to expected circular dependencies (Jonas Schnelli)
ab3a0a2fb9 Add functional test for blockfilterindex in prune-mode (Jonas Schnelli)
c286a22f7b Add debug startup parameter -fastprune for more effective pruning tests (Jonas Schnelli)
5e112269c3 Avoid pruning below the blockfilterindex sync height (Jonas Schnelli)
00d57ff768 Avoid accessing nullpointer in BaseIndex::GetSummary() (Jonas Schnelli)
6abe9f5b11 Allow blockfilter in conjunction with prune (Jonas Schnelli)
Pull request description:
Maintaining the blockfilterindexes in prune mode is possible and may lead to efficient p2p based rescans of wallets (restore backups, import/sweep keys) beyond the prune height (rescans not part of that PR).
This PR allows running the blockfilterindex(es) in conjunction with pruning.
* Bitcoind/Qt will shutdown during startup when missing block data has been detected ([re]enable `-blockfilterindex` when we already have pruned)
* manual block pruning is disabled during blockfilterindex sync
* auto-pruning is delayed during blockfilterindex sync
ToDos:
* [x] Functional tests
ACKs for top commit:
fjahr:
Code review ACK 84716b1
ryanofsky:
Code review ACK 84716b134e. Only changes since last review were suggested new FindFilesToPrune argument and test.
benthecarman:
tACK 84716b134e
Tree-SHA512: 91d832c6c562c463f7ec7655c08956385413a99a896640b9737bda0183607fac530435d03d87c3c0e70c61ccdfe73fe8f3639bc7d26d33ca7e60925ebb97d77a
Add a check that new connections from the test framework to the
node have the correct user agent string. This makes bugs easier
to detect if the user agent string ever changes.
The messages.py module should contain code and helpers for
[de]serializing p2p messages. Specific usage of those messages should
be in p2p.py. Therefore specify the nServices value in the calling code,
not in the messages.py module.
messages.py is for message and primitive data structures. Specifics
about the test framework's p2p implementation should be in p2p.py.
Also rename to P2P_VERSION_RELAY. Also rename msg_version.nRelay to
relay. In Bitcoin Core, this is referred to as fRelay, since it's a
bool, so this field has always been misnamed.
The messages.py module should contain code and helpers for
[de]serializing p2p messages. Specific usage of those messages should
be in p2p.py. Therefore move MY_SUBVERSION to p2p.py.
Also rename to P2P_SUBVERSION.
The messages.py module should contain code and helpers for
[de]serializing p2p messages. Specific usage of those messages should
be in p2p.py. Therefore move MY_VERSION to p2p.py.
Also rename to P2P_VERSION to distinguish it from
other versioning used in Bitcoin/Bitcoin Core.
Also always set the nVersion field in CBlockLocator to 0 and ignore the
field in deserialized messages. The field is not currently used for
anything in Bitcoin Core.
The messages.py module should contain code and helpers for
[de]serializing p2p messages. Specific usage of those messages should
be in p2p.py. Therefore move MIN_VERSION_SUPPORTED to p2p.py.
Also rename to MIN_P2P_VERSION_SUPPORTED to distinguish it from
other versioning used in Bitcoin/Bitcoin Core.
de85af5cce test: store subversion (user agent) as string in msg_version (Sebastian Falbesoner)
Pull request description:
It seems more natural to treat the "subversion" field (=user agent string, see [BIP 14](https://github.com/bitcoin/bips/blob/master/bip-0014.mediawiki#Proposal)) of a node as pure string rather than a bytestring within the test framework. This is also suggested with the naming prefix in `msg_version.strSubVer`: one probably wouldn't expect a field starting with "str" to be a bytestring that needs further decoding to be useful. This PR moves the encoding/decoding parts to the serialization/deserialization routines so that the user doesn't have to bother with that anymore.
Note that currently, in the master branch the `msg_version.strSubVer` is never read (only in `msg_version.__repr__`); However, one issue that is solved by this PR came up while testing #19509 (not merged yet): A decoding script for binary message capture files takes use of the functional test framework convert it into JSON format. Bytestrings will be convered to hexstrings, while pure strings will (surprise surprise) end up without modification in the file.
So without this patch, we get:
```
$ jq . out.json | grep -m5 strSubVer
"strSubVer": "2f5361746f7368693a32312e39392e302f"
"strSubVer": "2f5361746f7368693a302e32302e312f"
"strSubVer": "2f5361746f7368693a32312e39392e302f"
"strSubVer": "2f5361746f7368693a302e32302e312f"
"strSubVer": "2f5361746f7368693a32312e39392e302f"
```
After this patch:
```
$ jq . out2.json | grep -m5 strSubVer
"strSubVer": "/Satoshi:21.99.0/"
"strSubVer": "/Satoshi:0.20.1/"
"strSubVer": "/Satoshi:21.99.0/"
"strSubVer": "/Satoshi:0.20.1/"
"strSubVer": "/Satoshi:21.99.0/"
```
ACKs for top commit:
jnewbery:
utACK de85af5cce
Tree-SHA512: ff23642705c858e8387a625537dfec82e6b8a15da6d99b8d12152560e52d243ba17431b602b26f60996d897e00e3f37dcf8dc8a303ffb1d544df29a5937080f9
1afc0e4aa1 doc: remove potentially confusing ChainstateManager comment (James O'Beirne)
769a1ef9fd test: Add tests with maleated snapshot data (Fabian Jahr)
4d8de04f32 tests: add snapshot activation test (James O'Beirne)
31d225274f tests: add deterministic chain generation unittest fixture (James O'Beirne)
6606a4f8c6 move-onlyish: break out CreateUTXOSnapshot from dumptxoutset (James O'Beirne)
ad949ba449 txdb: don't reset during in-memory cache resize (James O'Beirne)
f6e2da5fb7 simplify ChainstateManager::SnapshotBlockhash() return semantics (James O'Beirne)
7a6c46b37e chainparams: add allowed assumeutxo values (James O'Beirne)
Pull request description:
This is part of the [assumeutxo project](https://github.com/bitcoin/bitcoin/projects/11):
Parent PR: #15606
Issue: #15605
Specification: https://github.com/jamesob/assumeutxo-docs/tree/master/proposal
---
This change proposes logic for activating UTXO snapshots, which is unused at the moment aside from an included unittest. There are a few moveonyish/refactoring commits to allow for halfway decent unittests.
Basic structure is included for specifying and checking the assumeutxo hash values used to validate activated snapshots. Initially I had specified a few height/hash pairs for mainnet in this change, but because of the security-critical nature of those parameters, I figured it was better to leave their inclusion to a future PR that includes only that change - my intent being that reviewers will be more likely to verify those parameters firsthand in a dedicated PR.
Aside from that and the snapshot activation logic, there are a few related changes:
- ~~allow caching the `nChainTx` value in the CCoinsViewDB; this is set during snapshot activation. Because we don't necessarily have access to the full chain at the time of snapshot load, this value is communicated through the snapshot metadata and must be cached within the chainstate to survive restarts.~~
- break out `CreateUTXOSnapshot()` from dumptxoutset. This is essentially a move-only change to allow the reuse of snapshot creation logic from within unittests.
- ...and a few other misc. changes that are solely related to unittests.
The move-onlyish commit is most easily reviewed with `--color-moved=zebra`.
ACKs for top commit:
fjahr:
Code review ACK 1afc0e4aa1
laanwj:
Code review ACK 1afc0e4aa1
Tree-SHA512: a4e4f0698f00a53ec298b5e8b7ef1c9fdf0185f95139d1b1f63cfdf6cbbd6d17b8c6e51bbf1de2e5f1a946bf49f8466232698ef55acce5a012c80b067da366ea
ef21fb7313 zmq test: speedup test by whitelisting peers (immediate tx relay) (Sebastian Falbesoner)
5c6546362d zmq test: fix flakiness by using more robust sync method (Sebastian Falbesoner)
8666033630 zmq test: accept arbitrary sequence start number in ZMQSubscriber (Sebastian Falbesoner)
6014d6e1b5 zmq test: dedup message reception handling in ZMQSubscriber (Sebastian Falbesoner)
Pull request description:
Fixes#20934 by using the "sync up" method described in https://github.com/bitcoin/bitcoin/issues/20538#issuecomment-738791868.
After improving robustness with this approach (commits 1-3), it turned out that there were still some fails, but those were unrelated to zmq: Out of 500 runs, 3 times `sync_mempool()` or `sync_blocks()` timed out, which can happen because the trickle relay time has no upper bound -- hence in rare cases, it takes longer than 60s. This is fixed by enabling immediate tx relay on node1 (commit 4), which as a nice side-effect also gives us a rough 2x speedup for the test.
For further details, also see the explanations in the commit messages.
There is no guarantee that the test is still not flaky, but it would help if potential reviewers would run the following script locally and report how many runs failed (feel free to do less than 1000 runs, as this takes quite a long if ran with `--valgrind`):
```
#!/bin/sh
OUTPUT_FILE=./zmq_results
echo ===== repeated zmq test ===== > $OUTPUT_FILE
for i in `seq 1000`; do
echo ------------------------
echo ----- test run $i -----
echo ------------------------
echo --- $i --- >> $OUTPUT_FILE
./test/functional/interface_zmq.py --valgrind
if [ $? -ne 0 ]; then
echo "FAILED. /o\\" >> $OUTPUT_FILE
else
echo "PASSED. \\o/" >> $OUTPUT_FILE
fi
done
echo Failed test runs:
grep FAILED $OUTPUT_FILE | wc -l
```
ACKs for top commit:
jonatack:
Light ACK ef21fb7313 with the caveat that I was unable to make the test fail with valgrind both here and on master, so I can't vouch that it actually fixes the CI flakiness. The test does run ~2x faster with this.
Tree-SHA512: 7a1e7592fbbd98e69e1e1294486b91253e589c72b3c6bbb7f587028ec07cca59b7d984e4ebf256c4bc3e8a529ec77d31842f3dd874038aea0b684abfea50306a
96635e6177 init: use GetNetworkNames() in -onlynet help (Jon Atack)
0dbde700a6 rpc: use GetNetworkNames() in getnetworkinfo and getpeerinfo helps (Jon Atack)
1c3af37881 net: create GetNetworkNames() (Jon Atack)
b45eae4d53 net: update NET_UNROUTABLE to not_publicly_routable in GetNetworkName() (Jon Atack)
Pull request description:
per the IRC discussion today at http://www.erisian.com.au/bitcoin-core-dev/log-2021-01-19.html#l-87
- return a more helpful string name for `Network::NET_UNROUTABLE`: "not_publicly_routable" instead of "unroutable"
- update the RPC getpeerinfo "network" help, and automate it and the getnetworkinfo "network#name" and the -onlynet help doc generation
ACKs for top commit:
theStack:
re-ACK 96635e6177🌳
MarcoFalke:
review ACK 96635e6177🐗
Tree-SHA512: 511a7d987126b48a7a090739aa7c4964b6186a3ff8f5f7eec9233dd816c6b7a6dc91b3ea6b824aa68f218a8a3ebdc6ffd214e9a88af38f2bf23f3257c4284c3a
3f8776a139 Re-add dead code detection (flack)
Pull request description:
This re-adds unreachable code detection for Python based on `vulture`.
Effectively, this reverts f4beb4996d. The difference to the previous version is that this runs with the `--min-confidence 100` setting. From https://pypi.org/project/vulture/:
> Use `--min-confidence 100` to only report code that is guaranteed to be unused within the analyzed files.
So this should avoid the previous issues where static analysis had wrong positives due to the dynamic nature of Python code by only reporting things that are unambiguous (such as code after a `return` statement). As such, there is not suppressions list.
My motivation was mainly #21081 which would have been caught by this (as can be seen by the CI run failing). This is still marked as draft because #21081 is needed to get the linter to pass. Also, there is a second problem that this found (see https://github.com/bitcoin/bitcoin/pull/19509/files#r571454691). From what I can tell, this is a spurious type comment that could just be removed (or if that line has no side effects it could also be deleted altogether?). I could add a commit here to fix it, but I wanted to see if there is interest in having this linter again in the first place
ACKs for top commit:
practicalswift:
ACK 3f8776a139
Tree-SHA512: 52314ad4f627d969de1eb15375ca677ed86a2e816fe773756a1ce22421214ba407b5a09a4bf701a3aab1a10c7b336f548e4cef3327edf154acba55e987db21f6
f64adc1eed test: remove unused function xor_bytes (Sebastian Falbesoner)
Pull request description:
The function `xor_bytes` was introduced in commit 3c226639eb (#19953, BIP340-342 validation), even [code-reviewed](https://github.com/bitcoin/bitcoin/pull/19953/files#r509383731), but actually never used. The [default signing algorithm in BIP340](https://github.com/bitcoin/bips/blob/master/bip-0340.mediawiki#Default_Signing) needs a xor operation, but this step is currently done by a single xor operation on large integer operands:
```
t = (sec ^ int.from_bytes(TaggedHash("BIP0340/aux", aux), 'big')).to_bytes(32, 'big')
```
Alternatively, we could keep the function and as well use it:
```diff
--- a/test/functional/test_framework/key.py
+++ b/test/functional/test_framework/key.py
@@ -492,7 +492,7 @@ def sign_schnorr(key, msg, aux=None, flip_p=False, flip_r=False):
P = SECP256K1.affine(SECP256K1.mul([(SECP256K1_G, sec)]))
if SECP256K1.has_even_y(P) == flip_p:
sec = SECP256K1_ORDER - sec
- t = (sec ^ int.from_bytes(TaggedHash("BIP0340/aux", aux), 'big')).to_bytes(32, 'big')
+ t = xor_bytes(sec.to_bytes(32, 'big'), TaggedHash("BIP0340/aux", aux))
kp = int.from_bytes(TaggedHash("BIP0340/nonce", t + P[0].to_bytes(32, 'big') + msg), 'big') % SECP256K1_ORDER
assert kp != 0
R = SECP256K1.affine(SECP256K1.mul([(SECP256K1_G, kp)]))
```
ACKs for top commit:
practicalswift:
cr ACK f64adc1eed: untested unused code should be removed
Tree-SHA512: e9afae303488f19c6f6f44874d3537ed1c8164a197490e2b4e34853db886b858825b719648fa1a30b95177dcee9cf241f94ee9b835f0a2cae07024ce38a8c090
fe3e993968 [p2p] No delay in adding fixed seeds if -dnsseed=0 and peers.dat is empty. Add -fixedseeds arg. (Dhruv Mehta)
Pull request description:
Closes#19795
Before PR: If `peers.dat` is empty and `-dnsseed=0`, bitcoind will fallback on to fixed seeds but only after a 60 seconds delay.
After PR: There's no 60 second delay.
To reproduce:
`rm ~/.bitcoin/peers.dat && src/bitcoind -dnsseed=0` without and with patch code
Other changes in the PR:
- `-fixedseeds` command line argument added: `-dnsseed=0 -fixedseeds=0 -addnode=X` provides a trusted peer only setup. `-dnsseed=0 -fixedseeds=0` allows for a `addnode` RPC to add a trusted peer without falling back to hardcoded seeds.
ACKs for top commit:
LarryRuane:
re-ACK fe3e993968
laanwj:
re-ACK fe3e993968
Tree-SHA512: 79449bf4e83a315be6dbac9bdd226de89d2a3f7f76d9c5640a2cb3572866e6b0e8ed67e65674c9824054cf13119dc01c7e1a33848daac6b6c34dbc158b6dba8f
060a2a64d4 ci: remove boost thread installation (fanquake)
06e1d7d81d build: don't build or use Boost Thread (fanquake)
7097add83c refactor: replace Boost shared_mutex with std shared_mutex in sigcache (fanquake)
8e55981ef8 refactor: replace Boost shared_mutex with std shared_mutex in cuckoocache tests (fanquake)
Pull request description:
This replaces `boost::shared_mutex` and `boost::unique_lock` with [`std::shared_mutex`](https://en.cppreference.com/w/cpp/thread/shared_mutex) & [`std::unique_lock`](https://en.cppreference.com/w/cpp/thread/unique_lock).
Even though [some concerns were raised](https://github.com/bitcoin/bitcoin/issues/16684#issuecomment-726214696) in #16684 with regard to `std::shared_mutex` being unsafe to use across some glibc versions, I still think this change is an improvement. As I mentioned in #21022, I also think trying to restrict standard library feature usage based on bugs in glibc is not only hard to do, but it's not currently clear exactly how we do that in practice (does it also extend to patching out use in our dependencies, should we be implementing more runtime checks for features we are using, when do we consider an affected glibc "old enough" not to worry about? etc). If you take a look through the [glibc bug tracker](https://sourceware.org/bugzilla/describecomponents.cgi?product=glibc) you'll no doubt find plenty of (active) bug reports for standard library code we already using. Obviously not to say we shouldn't try and avoid buggy code where possible.
Two other points:
[Cory mentioned in #21022](https://github.com/bitcoin/bitcoin/pull/21022#issuecomment-769274179):
> It also seems reasonable to me to worry that boost hits the same underlying glibc bug, and we've just not happened to trigger the right conditions yet.
Moving away from Boost to the standard library also removes the potential for differences related to Boosts configuration. Boost has multiple versions of `shared_mutex`, and what you end up using, and what it's backed by depends on:
* The version of Boost.
* The platform you're building for.
* Which version of `BOOST_THREAD_VERSION` is defined: (2,3,4 or 5) default=2. (see [here](https://www.boost.org/doc/libs/1_70_0/doc/html/thread/build.html#thread.build.configuration) for some of the differences).
* Is `BOOST_THREAD_V2_SHARED_MUTEX` defined? (not by default). If so, you might get the ["less performant, but more robust"](https://github.com/boostorg/thread/issues/230#issuecomment-475937761) version of `shared_mutex`.
A lot of these factors are eliminated by our use of depends, but users will have varying configurations. It's also not inconceivable to think that a distro, or some package manager might start defining something like `BOOST_THREAD_VERSION=3`. Boost tried to change the default from 2 to 3 at one point.
With this change, we no longer use Boost Thread, so this PR also removes it from depends, the build system, CI etc.
Previous similar PRs were #19183 & #20922. The authors are included in the commits here.
Also related to #21022 - pthread sanity checking.
ACKs for top commit:
laanwj:
Code review ACK 060a2a64d4
vasild:
ACK 060a2a64d4
Tree-SHA512: 572d14d8c9de20bc434511f20d3f431836393ff915b2fe9de5a47a02dca76805ad5c3fc4cceecb4cd43f3ba939a0508178c4e60e62abdbaaa6b3e8db20b75b03
e987ae5a55 test: Add test for deterministic UTXO set hash results (Fabian Jahr)
6ccc8fc067 test: Add test for gettxoutsetinfo RPC with MuHash (Fabian Jahr)
0d3b2f643d rpc: Add hash_type MUHASH to gettxoutsetinfo (Fabian Jahr)
2474645f3b refactor: Separate hash and stats calculation in coinstats (Fabian Jahr)
a1fcceac69 refactor: Improve encapsulation between MuHash3072 and Num3072 (Fabian Jahr)
Pull request description:
This is another Pr in the series PRs for Coinstatsindex (see overview in #18000). This PR adds the `hash_type` option `muhash` to `gettxoutsetinfo` through which the user can calculate the serialized muhash of the utxo set. This PR does not use the index yet.
ACKs for top commit:
Sjors:
tACK e987ae5
achow101:
ACK e987ae5a55
jonatack:
Tested re-ACK e987ae5a55 per `git diff 3506d90 e987ae5`, reviewed diff, debug built, ran gettxoutsetinfo -signet and help on this branch vs master, at height 23127 both returned `hash_serialized_2` of `2b72d65f3b6efb2311f58374ea2b939abf49684d44f4bafda45faa3b5452a454` and this branch returned `muhash` of `c9f1ff12d345ccf9939c6bbf087e6f7399b6115adee1569287e9c5c43dbb475c`
ryanofsky:
Code review ACK e987ae5a55. Looks very good. I left one suggestion to simplify code, but feel free to ignore it here and maybe consider it for later since PR has already had a lot of review.
Tree-SHA512: 9a739ce375e73749fa69a467262b60d3e5314ef384e2d7150b3bbc8e4125cd9fd1db95306623bb9a632fcbaf5d9d2bf2f5cc43bf717d4ff5e2c9c4b52dd9296c
3ddbf22ed1 util: Disallow negative mocktime (MarcoFalke)
f5f2f97168 net: Avoid UBSan warning in ProcessMessage(...) (practicalswift)
Pull request description:
Avoid UBSan warning in `ProcessMessage(...)`.
Context: https://github.com/bitcoin/bitcoin/pull/20380#issuecomment-770427182 (thanks Crypt-iQ!)
ACKs for top commit:
MarcoFalke:
re-ACK 3ddbf22ed1 only change is adding patch written by me
ajtowns:
ACK 3ddbf22ed1 -- code review only
Tree-SHA512: e8d7af0457ca86872b75a4e406c0a93aafd841c2962e244e147e748cc7ca118c56be0fdafe53765f4b291410030b2c3cc8f76f733b37a955d34fc885ab6037b9
fabeb5b9c7 fuzz: Disable shuffle when merge=1 (MarcoFalke)
Pull request description:
This should hopefully help make the deletion of fuzz inputs more deterministic.
My tests (N=1) revealed that without this patch 7000 files differ (https://github.com/bitcoin-core/qa-assets/pull/44#issuecomment-768841467). With this patch, "only" 2000 files differ.
ACKs for top commit:
practicalswift:
cr ACK fabeb5b9c7: `-shuffle=0` and `-prefer_small=1` make sense
Tree-SHA512: 21a701f52450d402a91dd6e0b33d564c63a9c3b919738eb9a80c24d48fc5b964088e325470738f39af0d595612c844acc7bf0941590cc2dc8c6f6ee4cb69c861
Speeds up the zmq test roughly by a factor of 2x (~20 sec. instead of
~40 sec.) and also avoids timeouts on the synchronization methods
(sync_mempool() / sync_blocks()) that happened with a slight chance.
This is due to the fact that there is no upper bound on the trickle
relay time, so even the default of 60s is sometimes too low. Fixed by
enabling immediate tx relay on node1.
After connecting the subscriber sockets to the node, there is no
guarantee that the node's zmq publisher interfaces are ready yet, which
means that potentially the first expected notification messages could
get lost and the test fails. Currently this is handled by just waiting
for a short period of time (200ms), which works most of the time but is
still problematic, as in some rare cases the setup time takes much
longer, even in the range of multiple seconds.
The solution in this commit approaches the problem by using a more
robust method of syncing up, originally proposed by instagibbs:
1. Generate a block on the node
2. Try to receive a notification on all subscribers
3. If all subscribers get a message within the timeout (1 second),
we are done, otherwise repeat starting from step 1
The ZMQSubscriber reception methods currently assert that the first
received publisher message has a sequence number of zero. In order to
fix the current test flakiness via "syncing up" to nodes in the setup
phase, we have to cope with the situation that messages get lost and the
first actual received message has a sequence number larger than zero.
